Ross ROSS = Recommend OSS · open-source software intelligence for agents

opentoonz/opentoonz

OpenToonz - An open-source full-featured 2D animation creation software observed · 2026-08-28

github.com/opentoonz/opentoonz · homepage · C++ · NOASSERTION (other) observed · 2026-08-28

Health v2 · maintenance only

96/100

  • Activity 99
  • Release rhythm 89
  • Longevity 100

Flags: no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: 20
  • age_days: 3820
  • days_rel: 75
  • days_push: 7
  • n_releases_24m: 2

Full methodology

Adoption not part of the score

7594 stars · 861 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

OpenToonz is a free, open-source, full-featured 2D animation production application based on the Toonz software customized by Studio Ghibli. It covers the full pipeline from scanning hand-drawn art through digital painting to final compositing, and includes an SDK for developing image-processing effect plugins.

Use cases

  • create 2d animations for free
  • open source alternative to toon boom harmony
  • software used by studio ghibli for animation
  • digital painting and compositing for hand-drawn animation
  • scan and clean up pencil drawings for animation
  • develop custom animation effects as plugins
  • teach 2d animation in schools

When to choose

  • you need a professional-grade 2D animation tool at no cost for commercial or personal work
  • you want raster and vector drawing, timesheet-based workflow, and node-based compositing in one app
  • you want to extend animation effects via a plugin SDK or study production-grade C++ code
  • you need a tool with proven use in real anime production pipelines

When to avoid

  • you need lightweight vector motion-graphics or UI animation (e.g. After Effects-style work)
  • you want a simple beginner-friendly drawing app rather than a full production pipeline
  • you need 3D animation or skeletal cut-out rigging as the primary workflow
  • you require a permissively licensed library to embed in your own product - it is a standalone application

Facets

application · maturity active

image-processing graphics gui plugin-system sdk graphics media cross-platform developer-tools windows cross-platform cpp 2d-animation animation-software toonz studio-ghibli raster-graphics vector-graphics compositing scanning effects-sdk macos linux desktop

2 sources

Member repositories

RepositoryRoleHealth v2
opentoonz/opentoonzmain96

For agents

markdown · JSON · MCP: product_card(name="opentoonz/opentoonz")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem